KTM 250 SX-F - 2011 Specifications and Reviews

The 2011 KTM 250 SX-F is a competitive four-stroke off-road machine designed for intermediate to advanced riders seeking lightweight performance and agility. Featuring a liquid-cooled 248cc single-cylinder engine with advanced fuel injection and DOHC technology, it delivers responsive power delivery ideal for motocross and enduro racing. Known for its exceptional handling characteristics and efficient power band, the 250 SX-F remains a popular choice for riders transitioning to four-stroke competition bikes.

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General information

CategoryEnduro / offroad
Year2011
ModelKTM 250 SX-F

Engine and Transmission Specifications

Exhaust systemAluminium
Driveline13:48. Primary drive: 22:68.
ClutchWet mDouble disk clutch, operated hydraulically
Transmission type,final driveChain
Gearbox6-speed
Cooling systemLiquid
Lubrication systemPressure lubrication with 2 oil pumps
IgnitionKeihin EMS
Fuel controlDOHC
Fuel systemCarburettor. Keihin EFI, throttle body 42 mm
Valves per cylinder4
Bore x stroke76.0 x 54.8 mm (3.0 x 2.2 inches)
Compression13.2:1
Engine typeSingle cylinder, four-stroke
Capacity:248.60 ccm (15.17 cubic inches)
 
 

Brakes, suspension, Frame and wheels

Wheels1.60 x 21in., 2.15 x 19in. Excel
Rear brakes diameter220 mm (8.7 inches)
Rear brakesSingle disc
Front brakes diameter260 mm (10.2 inches)
Front brakesSingle disc
Rear tyre dimensions100/90-19
Front tyre dimensions80/100-21
Rear suspension travel185 mm (7.3 inches)
Rear suspensionWP-Monoshock with linkage
Front suspension travel185 mm (7.3 inches)
Front suspensionWP USD 48 mm (1.89 in)
Rake (fork angle)26.5°
Frame typeCentral double-cradle-type 25CrMo4. Subframe: Aluminium.
 
 

Physical measures and capacities

Fuel capacity7.50 litres (1.98 gallons)
Wheelbase1,495 mm (58.9 inches)
Ground clearance375 mm (14.8 inches)
Seat height992 mm (39.1 inches) If adjustable, lowest setting.
Dry weight99.9 kg (220.2 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsOrange/black/white
StarterKick

Performance Profile & Rider Fit

Best For

Track90%
City10%
Cornering85%
Daily Riding10%
Touring12%
Passenger5%

Rider Profile

Best ForThis is a full-size 250cc motocross machine best suited to intermediate through expert off-road riders, not newcomers to dirt biking.
PurposeBuilt purely as a motocross competition bike for closed circuits and tracks, with sharp handling and high-performance suspension rather than everyday usability.
Rider FitThe tall 958 mm seat height, firm suspension, and lack of creature comforts demand good rider fitness, leg length, and off-road riding technique.
CharacterA lightweight, race-bred single-cylinder machine defined by aggressive acceleration, precise cornering, and razor-sharp responsiveness over rough terrain.
Not Ideal ForThis bike is not suitable for riders wanting a comfortable commuter, a passenger-friendly machine, or a long-distance touring companion.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2011 KTM 250 SX-F Rider Ergonomics Assessment

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Feet:

At 992mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2011 KTM 250 SX-F, with a moderate knee angle of around 90 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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